Pith Number

pith:NJPRJYSL

pith:2018:NJPRJYSLHYY4PEWLWAONWX6E3F

not attested not anchored not stored refs pending

$\beta$-Stars or On Extending a Drawing of a Connected Subgraph

J\'er\^ome Urhausen, Tamara Mchedlidze

arxiv:1808.10366 v1 · 2018-08-30 · cs.CG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NJPRJYSLHYY4PEWLWAONWX6E3F}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:06:49.015906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a5f14e24b3e31c792cbb01cdb5fc4d97579ede94bcc89cfd816038fb9d5bd11

Aliases

arxiv: 1808.10366 · arxiv_version: 1808.10366v1 · doi: 10.48550/arxiv.1808.10366 · pith_short_12: NJPRJYSLHYY4 · pith_short_16: NJPRJYSLHYY4PEWL · pith_short_8: NJPRJYSL

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NJPRJYSLHYY4PEWLWAONWX6E3F \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6a5f14e24b3e31c792cbb01cdb5fc4d97579ede94bcc89cfd816038fb9d5bd11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "428104641af924474ac2abca4b84a91c78dd58b19760859ba9d86112895a9c9e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-08-30T15:51:44Z",
    "title_canon_sha256": "9c335f88626e432592db8b68463bb2a14902b5a1cc5f10e0d1ea2dd9baa9226f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10366",
    "kind": "arxiv",
    "version": 1
  }
}